【选型】开关稳压器LM2575S-5.0用于智能固态断路器，输出电流达1A且典型效率达82%

时间： 2022-03-24 来源：世强

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在智能固态断路器的开发过程中，由于需要控制整机效率，在选用MCU等主控器件的辅助供电方案时一般会选用效率更高的开关稳压器，相较于线性稳压器，开关稳压器能带来更高的效率更小的损耗，萨科微推出的LM2575S-5.0具有外围电路简单，相较于LDO输出效率更高的特点；本文就LM2575S-5.0从功能以及性能参数，封装大小方面进行分析，从而讨论其应用于智能固态断路器中作为辅助供电的优势。

1. LM2575S-5.0功能框图如下：

图1. LM2575S-5.0功能框图

由上图可知，LM2575S-5.0为BUCK控制器，内部集成开关晶体管以及基准源,同时带有使能控制引脚，在使用少量外围器件的情况下能搭建开关型稳压源，故从功能的角度能作为辅助电源为系统内的主控器件供电，同时具有外围器件少，开发简单的特点。

2.LM2575S-5.0性能参数如下：

表1. LM2575S-5.0性能参数

由上表可知，LM2575S-5.0输入电压最大值高达45V，能带来更好的适用性；最大输出电流高达1A,满足绝大多数主控芯片的供电需求；典型效率高达82%，相较于LDO能带来更高的驱动效率；同时具备过流保护以及过热保护功能，具备更高的系统稳定性；工作温度范围-40℃-125℃，满足工业设计对温度的要求。

3.LM2575S-5.0封装尺寸如下：

图2. LM2575S-5.0封装尺寸

综上所述，LM2575S-5.0用于智能固态断路器作为辅助供电，在易用性，成本控制，稳定性以及整机效率方面具备一定的优势。

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资料详细介绍了深圳市萨科微半导体有限公司的产品和服务。公司专注于半导体领域，提供包括二极管、三极管、功率器件、电源管理芯片等在内的多种产品。产品广泛应用于智能手机、电脑、机器人、交通工具、智慧家居等行业。萨科微拥有国际领先的碳化硅MOSFET生产工艺，并拥有ISO9001质量管理体系和多项国际认证。公司致力于成为半导体领域的领导者。

SLKOR - HIGH AND LOW SIDE DRIVERS,MOSFET,SIC场效应晶体管,SCR,DIODE,REFERENCE POWER SUPPLY,石英晶体,超级结MOSFET,开关二极管,瞬态抑制二极管,可控硅光耦,高速光耦,双向可控硅,TVS,ZENER DIODE,石英晶体谐振器,达林顿晶体管阵列,PHOTO TRIAC,单向可控硅,光耦合器设备,高低边驱动器,SIC备用电池,双极性结型晶体管,碳化硅肖特基二极管,FAST RECOVERY DIODE,稳压二极管,HIGH-SPEED OPTOCOUPLERS,光电三端双向可控硅,静电保护器件,SIC MOSFET,IGBT DISCRETE,肖特基二极管,DARLINGTON ARRAY,直流-直流,OPERATIONAL AMPLIFIER,HALL SENSOR,整流桥,光敏晶体管,电源IC,IGBT分立器件,三极管,基准电源,碳化硅场效应管,RECTIFIER BRIDGE,LOW SIDE DRIVERS,快恢复二极管,参考电源,半桥驱动器,HALL传感器,齐纳二极管,HALF-BRIDGE DRIVERS,低边驱动器,SIC SBD,DC-DC,IGBT,LDO,高速光耦合器,OPTICALCOUPLER EQUIPMENT,PHOTO TRANSISTOR,整流二极管,QUARTZ CRYSTAL,高端和低端驱动器,RECTIFIER DIODE,SCHOTTKY DIODE,低压侧驱动器,晶体管光耦,霍尔传感器,SWITCHING DIODE,SUPER JUNCTION MOSFET,超结场效应管,低压差线性稳压器,可控硅,BIPOLAR JUNCTION TRANSISTOR,运算放大器,达林顿阵列,三合会,场效应管,光耦,IGBT单管,栅极驱动器,TRIACS,GATE DRIVERS,二极管,运放,BTW69,MB10S,SL25T135FL,BTA26-1000,SL2306,SL2307,MB10F,SL2308,SMCJ440CA,SL2309,SL55X,SL40N60C,SL2310,SL2312,SL3400,SL54X,SL3402,SL3404,SL4614,RS1A,RS1M,SMF5.0CA,SS120F,SL13N50FS,MMBT4401,FMMT591,MMBT4403,SLESDL0603-24,LM317,2N5551,SL21814,WE07DF-B,MMSZ5259B,SL2016384MXXX,S2MB,SL2301,SL2302,SL53X,SL2305,1SMB5921B,BTB20-600,SL322526MXXX,SL25N10,S2MF,SLESD8D36V,SL252025MXXX,SL201624MXXX,SLESD5Z5.0C,SL201616MXXX,2SK3018W,SL4949,SS52BF,2SB1261,SL10N65F,ZM4727,2SB1132,1SMA4777A,SL1609SH,DB307S,SL8N65F,SL05N06A,GBLC15CI,2SA812,SLESD8D15V,FMMT493,FMMT491,SMDJ170A,WE05DF-BS,2SC3357,SL78LXX,SL1609SL,SMF5.0A,US1AF,SL12020BT,MMBZ5221B,MMDL914,SL1609TH,SL05N06Z,RS2A,SL42764,SL1609TL,SL53N65CT,SS320BF,SLESD5Z7V0,FMMT489,RS2M,UMB10F,MM5Z2V0,GBLC03CI,MMBT5401,BT136-600,SS22,LMV321,SF1006DS,SL403,2N5401,SL6520B,SL21867,KBL4005,SL12030BT,UMB1F,SMF58CA,SS32,SMBJ5.0,2SK3018,SMBJ170CA,KBL410,BTA60-1200,GBLC12CI,US2AB,SL322512MXXX,WE24DF-B,SS12,SL3N170AP,SL503224MXXX,US2AF,SMF58A,SL50T65FL,SL1619SH,SL322527MXXX,SL42744D,SL1619SL,SS210B,LM321,SLESDL0603-16,SL201632MXXX,GBU410,IRLML6401,BCP51,BCP53,BCP52,BCP55,BCP54,BZX84C43,BCP56,SL1619TH,SL2733,SL1619TL,SL52X,TL432,TL431,SS52,NUP2105LT1G,SL201625MXXX,SL49SM3579M20P-20,SL252026MXXX,BTA80-1200,SLESDL0603-05,BCP68,SL27211DR,SLESD8D3V3,MMSZ5221B,TL431B,SL49SM26M20P-20,F1A,TL431A,DB207S,GBLC24CI,SS220F,2N7002E,BT136-800,F1M,SL85XXX,SL4822A,SL76N60CT,MC34063S,PC817,SL2328A,SL18N50F,BT137-600,MMBZ5262B,SM24C,SM36C,LMV358,RS3AB,SL27531,SS310C,SS310B,DB107S,SM12C,DB301S,SL40T120FL,KBL610,SL40N65CF,SL80N65CTL,SL12005B,GBP4005,SL49SM25M20P-20,SL22N120A,SL002N02K,SLESD5Z24,SL27525,SL27524,MMDT2222A,SL27523,US2MF,SL503225MXXX,SL252024MXXX,US2MB,SLESD3B5CM,SL05N10A,SL12P03S,C945,US2A,BFG520,SL252016MXXX,SL322532MXXX,SL2319A,SL40N65CT,SLESD5Z36,GBU6005,SL9013MXXXX,RS2AF,SL73XX,US2M,SS320F,ULN2803,SD20C,2SB1197K,SL4409N,ZMM2V0,SL12015B,SLESD5.0U035,US1A,SL10N120A,BTA08-600,SL0501,SL8205S,SL75T65FL1,US1M,BAS316,2SD965A,SL80N120A,S8550,SMBJ5.0C,S6AC,M1,BSS123,SL0601,LM2904,M7,SLPESD15VL1BA,LM2902,GBP3005,SL2309A,SLPESD0402M07,BT137-800,MM1Z39B,SLESD9B5.0ST5G,SLPESD0402M05,SMCJ440A,SMAJ5.0CA,SLPESD0402M03,GBU8005,BTA12-600,SLPESD2CAN,SL27212,SM20C,RS5AB,SS520F,SL201630MXXX,MMDT3904,BSS138,BTA41-1600,FR101,MMDT3906,SL322525MXXX,SM4001PL,FR107,SMDJ5.0CA,BTA06-600,BZT52B51BS,SLPESD0402M18,SL322530MXXX,SL17010BT,SLPESD0402M16,WE12DF-B,SLPESD0402M12,SL15T65FL,MM5Z75,SMDJ5.0A,SL80N10,DB201S,SL54MXXXX,S1A,S5AC,SL12010B,2SD1624,S5AB,SL6206-XXMR,SMCJ5.0CA,B772,S1M,KBL6005,SMBJ170A,MMBT2222A,AMS1117-XX,SL75XX,SL322524MXXX,DB101S,GBP2005,S2A,BT138-600,2SC1815,SL10N10A,SLESD9B3.3S,SL4813A,S2M,SL002P02K,SL50N120A,SL9435A,SL4184,S10AC,SL80N65CT,1SMA4728A,BC857B,RS5MB,SLESD5Z15V,SL2005E,SL6508B,SL4264-2,ZMM200,MMDT2227,SL1625SL,SM08C,SL252030MXXX,SL20N10,GBU4005,SD03C,SD15C,SL1625SH,BC856B,BTA10-800,SL1625TL,SL306X,GBP210,BT169D,SL4284,SL4041,SL1625TH,SL1613SH,ABS2,BTA26-800,SS510B,ABS10,1N4001W,SS510C,SL6506B,S3AC,S3AB,KBP4005,2SC1623,2SC2712,SF1001DS,2SD1781,ES1JF,BZT52B43,1SS226,SL1613TL,SL305X,SS52F,SL27714,SL1002B,BTA41-800,SD05C,SL4275,SL1613TH,SS52B,SS52C,S10MC,SS525,BT138-800,SLESD2401QC,2SD1898,BZT52C2V4S,SL2333A,SL100N03,DSK220,SL40N60CF,D882,ES2JF,GBP310,SL3N06,SL304X,SLM511,SL10P04S,SL49SM24M20P-20,BT139-600,1SS355,SL4N65F,S2AF,SL503212MXXX,SL3401S,1N4148W,S2AB,C1815,BTA04-600,ABS210,MMBT3904,ES2JB,KBP2005,MMBT3906,SL9945,MAC97A8,SL78XX,SL1623SL,SL7888,SL303X,ABS201,MAC97A6,BAV99,SLM501,SL17025BT,SL2192,SLPESD0201M24,KBP210,BZT52B3V0BS,SL1623SH,RS1AF,BTA41-1200,SLESD5Z12V,MB1F,SL4407A,1SS181,BC848B,78MXX,SM15C,SS510BF,GBP410,SM03C,MB1S,SL-10XX,SL302X,LL4148,SLM611,SLPESD3V3L1BA,SL2181,SLESD5Z2V5,MMBTA05,SL1623TH,SMAJ5.0A,MMBTA06,SL20T65FH,SL2184,SL14N120A,SL1623TL,SL2186,BT131-600,BC847B,SLPESD12VL1BA,2SC2873,DSK310,SL40T65FL,ES3JC,S8050,ES3JB,BAV70,SL27519,MMBT2907,MCR100-8,BCX51,SL27517,BSN20,MMBD4148,BCX53,SL301X,BCX52,BCX55,SLM601,SM18C,SLESD5B5CU,BCX54,SLM600,SL322516MXXX,SL27511,BAV20W,BCX56,SL27211E,KBP310,SL7603PXXXX,SL2302M,SLESD8H5.0CT5G,SL6800C,IRF640,SL7N65CN,SLESD8D5.0C,SD12C,S9013,SD24C,S9014,S9015,BC846B,SL10N06A,S9012,SL7N65CF,BT139-800,KBP3005,SL7N65CD,MCR100-6,BZT52C2V4,SL7N65CI,SM05C,2N3904,SL3139,SL27624,SS8550,SMAJ170CA,US1MF,BAV21W,SL8820,S9018,2N3906,SD36C,MM3Z75,BZT52C43S,BTB10-600,MMBTA55,SLW611,RS1MF,SL3134K,SS110,SS32BF,SL11N65CD,1N4007W,SL11N65CF,SL6512B,SL252012MXXX,SL8052A,SL1629SH,MM1W3V3,SL1629SL,KBP410,SL20162712MXXX,SLPESD5V0L1BA,SS22B,1N4148WS,SL60T65FL,1N4148WT,MMBTA56,DSK32,SS22F,SLW601,MMBTA44,SM4007PL,SL6540BT,MMBTA42,SL49SM6M20P-20,SL252040MXXX,SL36N120A,SL12040BT,SL201626MXXX,SL50N06D,SL1629TH,SL50328MXXX,SL827,BT151,BT152,SL1629TL,SL49SM8M20P-20,SL49SM27M20P-20,SL826,DSK22,SL11N65CQ,SL49SM12M20P-20,SL49SM16M20P-20,SL49SM10M20P-20,S6MC,2N7002,M1F,SLPESD0201M05,MMBT6517,SL322540MXXX,GBLC08CI,2SC5824,2SC4617,SL2009,ES1K,GBU610,SL6510B,BZT52B2V4,SL12N65F,SL1605SH,ULN2001,SL2014,SL2015,SL2136,SL1605SL,MM1W330,BSS84,BZX84C2V4,MM3Z2V0,SL9193MXXXX,DSK12,BAW56,SL21N65C,交通工具,机器人,POWER TOOLS,3C数码,智能穿戴品,CONNECTED VEHICLES,车联网,INTERNET OF THINGS,电动工具,3C数码设备,万物智联,LED照明,3C DIGITAL DEVICES,手提电脑,智慧家居,智能手机,联网车辆,SMARTPHONES,笔记本电脑,ROBOTS,物联网,LAPTOPS

2024/7/1 - 选型指南代理服务技术支持采购服务

SLKOR（萨科微）专业从事功率元器件的设计、生产和销售。技术骨干来自Infineon英飞凌、三菱、IR、TI德州仪器、ONSEMI安森美等同行业技术领先企业，主要生产MOS场效应管、COOLMOS、电源管理IC、FRD、霍尔hall元件、SCR、IGBT单管、SiC元器件等。

SIC碳化硅器件高压MOS管中低压MOS管 COOLMOS 碳化硅场效应管碳化硅肖特基二极管场效应管 TVS瞬态抑制二极管 ESD防静电二极管超结场效应管 IGBT单管 IGBT/SIC模块二极管三极管肖特基二极管线性稳压器LDO 霍尔传感器开关二极管可控硅单向可控硅双向可控硅整流桥通用二极管 DC-DC电源芯片驱动IC IC集成电路快恢复二极管电池管理IC 光耦光电二极管运算放大器 RS232芯片达林顿管电压基准芯片开关电源芯片

代理服务线上商城技术资料

萨科微DC-DC电源芯片MC34063，可输出高达1.5A开关电流，具有短路电流限制和低待机电流特性

SLKOR DC-DC电源芯片MC34063是一款非常出色的产品，它是一款单片稳压器子系统，旨在用作DC到DC转换器。该器件包含温度补偿带隙基准、占空比控制振荡器、驱动器和高电流输出开关，可用于降压、升压或反相开关调节器以及串联调节器。

2023-10-30 - 产品代理服务技术支持采购服务

标称稳压值为12V的稳压二极管MMBZ5242B，功率为350mW，反向电流为2µA

本文探讨一款备受瞩目的稳压二极管——MMBZ5242B，标称稳压值为12V，稳压值范围在11.4V至12.6V之间，功率为350mW，反向电流为2µA。凭借出色的稳压性能、适中的功率以及低反向电流特性，MMBZ5242B在电子行业中具有广泛的应用前景。

2024-09-30 - 产品代理服务技术支持采购服务

浅谈SIMO单电感多输出电源技术

单电感多输出（SIMO）电源转换器可以通过单个电感器件实现多路输出，从而减少了电感器件的数量和占用空间。同时，由于SIMO架构采用了多路输出，可以更好地适应不同的负载需求，提高了电路的效率和稳定性。

2024-03-29 - 技术探讨代理服务技术支持采购服务

SLKOR（萨科微）功率器件/二极管/三极管/电源管理芯片/霍尔传感器/光耦选型指南

公司简介场效应管/IGBT单管单向/双向可控硅稳压二极管三极管运算放大器/达林顿晶体管阵列/整流桥霍尔传感器光耦石英晶体谐振器

SLKOR - MOSFET,SIC场效应晶体管,SCR,REFERENCE POWER SUPPLY,石英晶体,超级结MOSFET,开关二极管,HIGH-SPEED OPTOCOUPLER,瞬态抑制二极管,晶闸管,三端双向可控硅,高速光耦,双向可控硅,TVS,ZENER DIODE,快速恢复二极管,石英晶体谐振器,TVS管,达林顿晶体管阵列,单向可控硅,光耦合器设备,功率器件,双极性结型晶体管,静电放电,稳压二极管,静电保护器件,ESD管,TRIAC,SIC MOSFET,IGBT DISCRETE,肖特基二极管,DARLINGTON ARRAY,直流-直流,OPERATIONAL AMPLIFIER,HALL SENSOR,整流桥,光敏晶体管,IGBT分立器件,三极管,基准电源,碳化硅场效应管,RECTIFIER BRIDGE,快恢复二极管,参考电源,HALL传感器,齐纳二极管,DC-DC,电源管理芯片,LDO,ESD,OPTICALCOUPLER EQUIPMENT,PHOTO TRANSISTOR,整流二极管,FAST ECOVERY DIODE,QUARTZ CRYSTAL,RECTIFIER DIODE,SCHOTTKY DIODE,晶体管光耦,霍尔传感器,SWITCHING DIODE,SUPER JUNCTION MOSFET,超结场效应管,低压差线性稳压器,可控硅,BIPOLAR JUNCTION TRANSISTOR,运算放大器,三合会,达林顿阵列,场效应管,光耦,IGBT单管,TRIACS,二极管,运放,BZT52C43S,SS110,MCR00-8,SMCJ440CA,SL11N65CF,MC34063S,ZMM200,PC817,SL2310,SL3400,SL1629SH,SL252030MXXX,RS1A,RS1M,DB107S,GBU4005,1N4148WS,SMF5.0CA,DSK32,SL40T120FL,SL1625SH,MMBT4401,LM317,SL36N120A,SL75T65FL,SL50328MXXX,MMSZ5259B,SL22N120A,SL2301,BT151,GBP210,SL2302,BT169D,SL49SM8M20P-20,1SMB5921B,SL1613SH,S2MF,SL49SM12M20P-20,2N7002,SL201624MXXX,BTA26-800,SL322540MXXX,S3AB,SL4949,GBU610,BFG520,SL252016MXXX,BZT52B2V4,BZT52B43,SL1605SH,ZM4727,1SMA4777A,SL1609SH,BTA41-800,GBU6005,SL21N65CF,SL25T120FL,BTA24-800,SD05C,SL4275,ULN2003,SL1613TH,ES2A,SS525,6N137,6N136,SL15N65CF,WE05DF-BS,ULN2803,BT138-800,2SC3357,SL78LXX,LM2575,6N135,ZMM2V0,LM2576,BZT52C2V4S,US1A,SMF5.0A,SMAJ170A,SL10N120A,S5MB,RS2A,RS2M,MMBT5551,US1M,SL80N120A,S8550,S2AF,SMBJ5.0C,M1,SS22,BSS123,M7,SS310,ABS210,MMBT3904,MMBT3906,SMF58CA,BT137-800,MM1Z39B,ABS201,SMCJ440A,SMAJ5.0CA,BTA12-600,BAV99,SS32,SMBJ5.0,SL1623SH,SMBJ170CA,SL201612MXXX,BSS138,SL322512MXXX,1SMB5956B,ES2J,FR101,SS12,SL3N170AP,1SS181,FR107,SMF58A,78MXX,SL50T65FL,SM15C,SL1619SH,LL4148,MM1Z2V2B,SMAJ5.0A,MMBTA05,SL14N120A,BC817,SS8050,DB201S,SL1615SH,S1A,LM321,S5AB,SMCJ5.0CA,DSK310,GBU410,SS210,BCP51,SL40T65FL,BCP53,S8050,S1M,B772,SMBJ170A,SL28N65A,MMBT2222A,SLM601,BTA16-800,AMS1117-XX,ZM4761,TL431,SS52,NUP2105LT1G,DB101S,SL322524MXXX,SL1603SH,IRF640,SD12C,S9013,GBP2005,SL3407,BZT52C39,SL7N65CD,SMCJ5.0A,BZT52C2V4,SL50N120A,S3MB,MMSZ5221B,SS8550,SL3415,SMAJ170CA,GBLC05CI,BAV21W,DB207S,LM358S,SL80N65CT,1SMA4728A,通讯设备,变频器,基站电源,超薄电脑,自控电路,UPS不间断电源,TWS蓝牙耳机,电子钟,驱动电路,计算器,照明,ADAPTER,计时器,电动工具,交通控制,手持电动工具,移动通讯产品,变频控制,电子计算机,稳频计时电子产品,VRM,适配器,TVS蓝牙耳机,直流电机调速系统,数字仪表,地铁,流量计,微机接口,斩波器,小型电子设备,移动手机,电机,电子设备,BP机,无刷电机,脉冲放大电路,开关电源供电,逆变器,电源设备,净水器,小厨电,水表,电话机,电机调速,SWITCHING POWER SUPPLY,开关电源,手机,电子开关,电子玩具,消费电子,风电设备,仪器仪表,扫地机器人,火车,电动汽车,工业电机,控制器,气表,电子产品,工业,电车,玩具,电视机,开关电路,工业控制,固态继电器,医疗设备,太阳能设备,快充PD,电子锁,充电桩,风力发电,小型电脑,平板电脑,多谐振荡器,小家电,通信设备,BALLAST,跳绳,美容美发工具,家用电器,镇流器,SSR,笔记本电脑,阀门,电源适配器,氙灯

2022/10/9 - 选型指南代理服务技术支持采购服务

SL8205FC 5A，20V输入，高效率，快速同步降压稳压器

SL8205FC是一款高效、快速同步降压型DC-DC转换器，可提供高达5A的输出电流。它适用于4.5V至20V宽输入电压范围，并集成了主开关和低导通电阻的同步开关以最小化传导损耗。该器件采用即时PWM架构实现快速的瞬态响应，并在轻载下保持高效率。此外，它在连续导电模式下以伪固定频率500kHz运行，以最大限度地减小电感和电容的大小。

SLKOR - INPUT, HIGH EFFICIENCY, FAST SYNCHRONOUS STEP-DOWN REGULATOR,HIGH EFFICIENCY AND FAST SYNCHRONOUS STEPDOWN DC-DC CONVERTER,输入、高效率、快速同步降压稳压器,高效率快速同步降压DC-DC转换器,SL8205FC,机顶盒,NOTEBOOK,NETWORKING,网络,HIGH POWER AP ROUTER,高功率AP路由器,LCD TV,笔记本,STORAGE,SET TOP BOX,汽车系统,液晶电视,存储器,AUTOMOTIVE SYSTEMS

06 July 2020 - 数据手册 - Rev.1 代理服务技术支持采购服务

LM2596SX/T/HV Series 3A 150KHZ DC开关稳压电路

该资料介绍了LM2596SX/T/HV系列降压稳压器的产品订购信息、设计程序和相关参数。内容包括不同型号的封装类型、包装方式和数量，以及针对固定输出和可调输出的电感器和电容器的选择建议。

SLKOR - PWM DCDC稳压电源换器,DC开关稳压电路,LM2596HVT-5.0,LM2596T,LM2596SX-ADJ,LM2596SX-15,LM2596HVT-15,LM2596SX-12,LM2596HVT-12,LM2596SX SERIES,LM2596HVT-3.3,LM2596HVT-ADJ,LM2596HV SERIES,LM2596T-ADJ,LM2596系列,LM2596HV,LM2596T SERIES,LM2596,LM2596HVS-ADJ,LM2596T-5.0,LM2596MDT-5.0,LM2596MDT-3.3,LM2596T-3.3,LM2596HVS-15,LM2596T-15,LM2596MDT-15,LM2596MDT-12,LM2596HVS-5.0,LM2596HVS-12,LM2596SX,LM2596HVS-3.3,LM2596T-12,LM2596MDT-ADJ,LM2596SX-5.0,LM2596SX-3.3,数码相框,电视机顶盒,电话,液晶显示器,液晶电视,网络设备,调制解调器

2022/9/12 - 数据手册代理服务技术支持采购服务